USA Track & Field hopes its study will "determine the effect of pre-run stretching on running injuries." If you're at least 13 years old and run at least 10 miles a week, you're eligible to participate. If you do, you'll be randomly assigned to either a pre-run stretch group, or a control group that will not stretch before their runs. The participation period is three months.

According to Alan Roth, Ph.D., the study's coordinator:

We now have more than 1,200 participants and more than 530 of them have completed their participation and submitted their report. We will probably need at least several thousand participants before we can make statistically valid conclusions.

If you hate statistically invalid conclusions as much as I do, you'll consider signing up. Plus, wouldn't it feel good to give something back to the sport?